Jose Antonio Perez was baptized on 16 May 1773, the son of Francisco Javier Perez and Maria Josefa Rios.
In 1782, he lived at Guardado. The church census recorded that he was a child, casta, and 9 years old. His household included 9 people:
Francisco Javier Perez, casta, married, age 41.
Maria Josefa de los Rios, espaƱola, married, age 41.
Jose Ignacio Perez, casta, a youth, age 15.
Maria del Carmen Perez, casta, an unmarried girl, age 13.
Maria Rita Perez, casta, a child, age 11.
Jose Antonio Perez, casta, a child, age 9.
Jose Alvino Perez, casta, a young child, age 6.
Maria Antonia Perez, casta, a young child, age 1.
Maria Josefa Perez, india, a young child, age 3.